Avoid Tokyo as much as possible everything there seems to cost 2-3 times more than other parts of Japan.

Stay at guest houses, around 3,000 to 5,000yen per night.

Eat supermarket take-a-ways, their much nicer and cheaper than the convenience store ones. If you go around 7pm to the supermarket there's always good discounts. Best food is in Coop Supermarkets, followed by Heiwado (well at least in Kansai area).

Plan your rail travel and buy a JR Pass before you leave.

Make friends with Japanese people and stay at their place, but remember to bring souvenirs, give some money for food, help out with the house work.

Avoid Tokyo as much as possible everything there seems to cost 2-3 times more than other parts of Japan.

Stay at guest houses, around 3,000 to 5,000yen per night.

Eat supermarket take-a-ways, their much nicer and cheaper than the convenience store ones. If you go around 7pm to the supermarket there's always good discounts. Best food is in Coop Supermarkets, followed by Heiwado (well at least in Kansai area).

Plan your rail travel and buy a JR Pass before you leave.

Make friends with Japanese people and stay at their place, but remember to bring souvenirs, give some money for food, help out with the house work.

On the topic of JR pass. IF a traveler wish to stay in Japan for say, 6 weeks, are they allow to buy 2 JR pass to satisfy the 3wks + 3wks scenario?

On the topic of JR pass. IF a traveler wish to stay in Japan for say, 6 weeks, are they allow to buy 2 JR pass to satisfy the 3wks + 3wks scenario?

AFAIK you can buy multiple exchange orders (the coupons which you buy overseas and exchange in Japan for the rail pass) and then exchange them as you need to. I've never used more than one per trip myself though.